It generally takes one, Luminatii, though the impact on the community, often judged by an increase in the number of reports we receive, can be a factor.
I should note that verified bad names will usually process faster, as our staff uses those already verified calls to help for new reports.
Beyond that, we’re not going to provide a lot of details on the ins and outs of our reporting systems. There are simply far too many folks out there who try to game and abuse it.
We tend to penalize the WoW license, not the entire Battle.net account.